[PATCH 00/11] Panel Replay + Adaptive sync
Jouni Högander
jouni.hogander at intel.com
Fri May 2 08:58:51 UTC 2025
This patch set is adding missing configuration to have Panel Replay
and Adaptive Sync enabled simultaneously. Also some issues identified
while debugging are fixed:
1. Source PORT ALPM configuration has to made during modeset.
2. PHY_CMN1_CONTROL is not written according to HAS document
3. Wrong register field definitions for PORT_ALPM_LFPS_CTL.
Patches are tested on LunarLake and PantheLake using our reference panel supporting
Adaptive Sync and Panel Replay.
EMP_AS_SDP_TL is currently missing completely from drm-tip. There is a patch for that which is needed if testing these patches:
https://patchwork.freedesktop.org/series/148421/
Otherwise "PSR idle timeout" errors are seen while testing.
Jouni Högander (11):
drm/dp: Add Panel Replay capability bits from DP2.1 specification
drm/i915/psr: Read both Panel Replay capability registers from DPCD
drm/i915/alpm: Add PR_ALPM_CTL register definitions
drm/i915/alpm: Write PR_ALPM_CTL register
drm/i915/psr: Add interface to check if AUXLess ALPM is needed by PSR
drm/i915/alpm: Add new interface to check if AUXLess ALPM is used
drm/i915/alpm: Move port alpm configuration
drm/i915/display: Add PHY_CMN1_CONTROL register definitions
drm/i915/display: Add function to configure LFPS sending
drm/i915/psr: Fix using wrong mask in REG_FIELD_PREP
drm/i915/psr: Do not disable Panel Replay in case VRR is enabled
drivers/gpu/drm/i915/display/intel_alpm.c | 83 ++++++++++++++-----
drivers/gpu/drm/i915/display/intel_alpm.h | 4 +
drivers/gpu/drm/i915/display/intel_cx0_phy.c | 30 +++++++
drivers/gpu/drm/i915/display/intel_cx0_phy.h | 2 +
.../gpu/drm/i915/display/intel_cx0_phy_regs.h | 3 +
drivers/gpu/drm/i915/display/intel_ddi.c | 12 +++
.../drm/i915/display/intel_display_types.h | 2 +-
drivers/gpu/drm/i915/display/intel_psr.c | 40 ++++++---
drivers/gpu/drm/i915/display/intel_psr.h | 2 +
drivers/gpu/drm/i915/display/intel_psr_regs.h | 14 +++-
include/drm/display/drm_dp.h | 10 ++-
11 files changed, 164 insertions(+), 38 deletions(-)
--
2.43.0
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